I've been using Digg Reader for a few months and it works pretty nicely. I'd like it if the reloading of articles could sync in the background, and I'd like to be able to default to my list of feed articles rather than Digg's... however, it's free.. so I can't complain too much.

To Digg's favour, I do read some of their articles now (so presumably they get some ad revenue)...